Room heating system

Abstract

A room heating system includes a heatable floor having a floor heating system, and a room thermostat having a room air sensor and being connected with a regulating unit for the floor heating system. The temperature control in a room is improved by providing the room thermostat with a surface temperature sensor, which determines a temperature on the surface of the floor from a distance.

1. A room heating system comprising:
 a heatable floor having a floor heating system; and 
 a room thermostat having a room air sensor measuring room air temperature in a room containing the floor heating system, the room air sensor being connected with a regulating unit for the floor heating system, wherein the room thermostat has a surface temperature sensor, which determines a temperature of a surface of the floor at a distance from the floor, and the room thermostat has a minimum/maximum value selection unit for limiting the surface temperature of the floor to a predetermined value irrespective of the room air temperature measured by the room air sensor. 
 
   
   
     2. The system according to  claim 1 , wherein the surface temperature sensor is an infrared sensor. 
   
   
     3. The system according to  claim 2 , wherein the room thermostat is wirelessly connected with the regulating unit. 
   
   
     4. The system according to  claim 2 , wherein the room thermostat gives the surface temperature sensor a priority with regard to influencing the regulating unit. 
   
   
     5. The system according to  claim 2 , wherein the room thermostat is located at a height in the range of 1.2 to 1.8 m over the floor. 
   
   
     6. The system according to  claim 2 , wherein the room thermostat is located at a maximum distance of 0.3 m from a wall. 
   
   
     7. The system according to  claim 2 , wherein the room thermostat determines the surface temperature of the floor at certain time intervals. 
   
   
     8. The system according to  claim 7 , wherein the room thermostat only passes on values of the surface temperature sensor to the regulating unit when a change exceeds a predetermined value. 
   
   
     9. The system according to  claim 8 , wherein the room thermostat only transmits the surface temperature values to the regulating unit when a medium surface temperature value changes by more than a predetermined value over a predetermined period. 
   
   
     10. The system according to  claim 7 , wherein the room thermostat only transmits surface temperature values from the surface temperature sensor to the regulating unit when a medium surface temperature value changes by more than a predetermined value over a predetermined period. 
   
   
     11. The system according to  claim 1 , wherein the room thermostat is wirelessly connected with the regulating unit. 
   
   
     12. The system according to  claim 1 , wherein the room thermostat gives the surface temperature sensor a priority with regard to influencing the regulating unit. 
   
   
     13. The system according to  claim 1 , wherein the room thermostat is located at a height in the range of 1.2 to 1.8 m over the floor. 
   
   
     14. The system according to  claim 1 , wherein the room thermostat is located at a maximum distance of 0.3 m from a wall. 
   
   
     15. The system according to  claim 1 , wherein the room thermostat determines the surface temperature of the floor at certain time intervals. 
   
   
     16. The system according to  claim 15 , wherein the room thermostat only passes on values of the surface temperature sensor to the regulating unit when a change exceeds a predetermined value. 
   
   
     17. The system according to  claim 16 , wherein the room thermostat only transmits the surface temperature values to the regulating unit when a medium surface temperature value changes by more than a predetermined value over a predetermined period. 
   
   
     18. The system according to  claim 15 , wherein the room thermostat only transmits surface temperature values from the surface temperature sensor to the regulating unit when a medium surface temperature value changes by more than a predetermined value over a predetermined period. 
   
   
     19. The system according to  claim 1 , wherein the room thermostat and the surface temperature sensor are included in a single component. 
   
   
     20. The system according to  claim 19 , wherein the single component is adapted to be mounted on a wall.